"You're a bastard for murdering my friend and his parents-in-law with him," he told the court.

"You have taken away the dreams of Luc's family. Luc wanted to give his kids everything. They had left South Africa because of crime.

"I could not imagine the fear and pain they would have gone through."

He told Corbo South Africans would think twice about coming to Australia because of the case.

"Your actions have done a lot of damage to this country," he said.

'Not in Adelaide'

Mr Groves' wife Mirella echoed his view.

"I kept thinking this happens in South Africa, but not in Adelaide," she said.

"Mr Corbo, in your moment of rage and madness you destroyed a beautiful family."

Constable Travis Emms suffered a severe knee injury as he ducked for cover when Corbo pointed the gun at him.

He also suffered permanent hearing damage.

"The defendant had me trapped inside that bedroom for minutes. I felt there was no escape for me," he told the court.

"I remember everything that happened in that house. I feel like my soul never escaped the house, it is still trapped in the bedroom."

He said it had harmed his ability to do his work.

"Afterwards I felt empty emotionally and unable to feel anything but sadness," he said.

"I no longer feel comfortable doing the job I loved so much before the shooting."

SA Police Association president Mark Carroll thanked the Mombers family for their support in the days following the tragedy of the officers injured when they attended the scene.

"In relation to the community of South Australia, we thank you for your support. For our members and to the wider police community that have stood by both Brett and Travis in this time and their recovery, which will be ongoing for some time to come, we thank you for your support," he said.

Mr Carroll said there was a clear message about firearms in the community.

"There is a cautionary tale for all people that own firearms in relation to how dangerous they can be and that they should be making and ensuring that they have every contingency in place to make sure that firearm can't be used in any way that can hurt someone," he said.

The ABC has learnt Corbo's father, Giuseppi Corbo, is facing six charges stemming from the tragedy, including one of endangering life.

It is alleged the gun used was his and he left the keys to his gun cabinet in a place where his son could get them.